Improvement in machine for producing molds



J. PEET, or NEW Youn, N. Y.

Lettera Patent No. 100,319, dated March 1, 1870; ontedated February 16, 1870.

l IMPROVEMENT 111i MACHINEFOR 4PR.OD'ILICING- MOLDS.

Wmo-* The Schedule refenm to in these Letters P'atent sind making part of the same.

To all whom it may concern Bo it known that I, S. J. PEET, of the city, county,

and Statey of New York, haveinvented a new and im-' proved Machine forProducing Molds; and I do hereby' declare the following to be a full, clear, and exact description thereof', which will enable those skilled in the art to malte and use the same, reference being had to the accompanying drawing, forming part of this specification, in which drawlngv Figure l represents a longitudinal vertical section of this in rention: f

Figure 2 is a transverse section ot' the same.

Similar letters indicate corresponding parts.

This invention relates to 'a machine which is composed of a movable table to which the patterns are secured, and which canl be raised into a hole h1 a platform which supports u templet-platc and dusk, in such a manner that when the flask and templetp'late are in position, and the pattern-table is raised, the operation ot' molding 1s etlected by packing-the flask with sand, and ley lowering the pattern-table all the'patternsare withdrawn ii'fna the sand simultaneouslyand with peri'efzt safety to the mold.

In the drawing- The letter A designates a platform, which is snpported by columns 1l :nid provided with' a hole just large enough to admit the pattern-table C. y

lhis table may be raised and lowered by u. screwrcd, l?, to which motion is imparted by lia-nd, steam, or may desirable power, and on said table are secured the patterns E which are to be moulded.

Earl Oi'ihtSe patternsres'ts on pedestal, F, 'which is the. exact. suie a? the lower or bottom face of th'e pattcm uplox'ie b il, and equal in height to the thickness of?. telnmetqdatc, G, which is cast ci' typemetal or any other suitable material, and provided with holes corresponding in size and shape to the pedestais on the patterntable, so that if said pedestals are raised up into the holes ci' the tcmplet-plate, the

. ann-ot pass through bet-Ween the joints.

s temple-opiate is placed into a recess in the .erta A, whereby it is brought inthe correct position to receive in its holes the pedest-ais secured to the pattern-table, while if said table is raised as far as required, the patterns carried by lit project above the upper surface of the templet-plate.

ing the molding-sand, and byramming the sand down over the patterns E the' molds are. formed.

After this operation has been completed, the 'pattern-,table G is lowered, and all the patterns secured to -it are simultaneously withdrawn out of theirmolds, even by unskilled hands, with perfect safety to the molds, thus saving all the labor of patching-up the molds, which are liable to get broken it" the patterns are withdrawn in the ordinary manner. The pattern-table is guided by loops or eyes a catoliing overl guide-bars b, which are secured to the bottom vsurface ofthe platform A, and the required rising-andfulling motion is imparted to said table by the screwrod I), which is tapped into the hub of a pulley, c, and guided by a. cross-bar, d, the pulley c being revolved by means of a. belt passing round it and round another pulley, c, mounted on a vertical arbor, ,that receives its motion by hand or any other power.'

To the screw-rod D is rmly secured a. 'cross-head, g, which moves between the slotted standards h.

In one of these standards are secured the movable stops t', which are. set to correspond to the required motion of' the pattern-table.

kHaa'ingtlms described my invention,

What [claim as new, and desire to secure by Let- .ters Patent, is-

1f. The movable pattern-table 0, in combination with pcdestals F, templet-plate G, and ask H, substantially as described.

2. The adj ustablc stops vi o i' the slotted standard h, in combination with cross-hcadsg, screw-1),.and pattern-table O, substantially as described.

June, 1809.

-S. J. FEET.

Witnesses:

G. Bonson, W. H. Wa'lsox.

On the templet-plate is placed the flask H, contain This speilication signed by me, this 17th day ofV 

